Dear Ms. Jenkins,
Thank you for posting your request on History Hub
The Mississippi Department of Archives and History has these agricultural schedules for the state of Mississippi for 1850, 1860, 1870, and 1880. Schedules for 1890 through 1920 were destroyed. See Nonpopulation Census Records and Agricultural Schedules of the United States Census for more information. Reports based on the 1840 to 2002 censuses of agriculture are available from the United States Department of Agriculture's Historical Census Publications web site.
We hope this is helpful. Best of luck with your research!